Document Detail


Harbour porpoises (Phocoena phocoena) stranded along the southern North Sea: An assessment through metallic contamination.
MedLine Citation:
PMID:  24981825     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Throughout the last few years, the southern North Sea has witnessed an increase in the number of stranded marine mammals, particularly the harbour porpoise (Phocoena phocoena). This species is subject to several potential threats such as exposure to contaminants, changes in food supply, marine traffic and fishery by-catch. The aims of this study were to investigate potential associations between contaminants and health status and to analyze spatial and temporal trends of metal concentrations in harbour porpoises. Selected trace elements (As, Cd, Cr, Cu, Hg, Mn, Se, V and Zn) were measured in kidneys and livers of 105 harbour porpoises stranded along the southern North Sea (French and Belgian coasts from 2006 to 2013) and 27 stranded along the Bay of Biscay (French coast from 2009 to 2012). Porpoises that died from infectious disease displayed significant higher hepatic concentrations of Cd, Hg, Se and Zn compared to healthy porpoises that died from physical trauma. Adult porpoises displayed significant higher concentrations of Cd, Cr, Hg, Se and V in livers compared to juveniles. No spatial or temporal trends in metal concentrations were detected in our study. The results of the present study suggested that chemical contamination may represent one of many threats encountered by harbour porpoises, but it cannot explain alone the increase in the number of stranded individuals.
Authors:
Céline Mahfouz; Françoise Henry; Lucie Courcot; Sylvain Pezeril; Thibaut Bouveroux; Willy Dabin; Thierry Jauniaux; Gaby Khalaf; Rachid Amara
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-6-27
Journal Detail:
Title:  Environmental research     Volume:  133C     ISSN:  1096-0953     ISO Abbreviation:  Environ. Res.     Publication Date:  2014 Jun 
Date Detail:
Created Date:  2014-7-1     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0147621     Medline TA:  Environ Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  266-273     Citation Subset:  -    
Copyright Information:
Copyright © 2014 Elsevier Inc. All rights reserved.
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